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Journal of Optometry

Jesús Pintor
No abstract text is available yet for this article.
August 1, 2018: Journal of Optometry
Diego De Ortueta, Samuel Arba-Mosquera, Thomas Magnago
PURPOSE: To evaluate the temperature rise of human cornea during trans-epithelial photorefractive keratectomy (trans-PRK) with a 750Hz excimer laser employing Intelligent Thermal Effect Control (ITEC) software. METHODS: In this observational case series, trans-PRK ablation was performed on 5 eyes of 3 patients using an aspheric profile of a 750Hz excimer laser system. A high-resolution infrared camera with a frame-rate of 350 images per second was used to determine the corneal surface temperature...
July 20, 2018: Journal of Optometry
Mira Acs, Barbara Caffery, Melissa Barnett, Charles Edmonds, Larisa Johnson-Tong, Richard Maharaj, Bart Pemberton, Dominik Papinski, Jennifer Harthan, Sruthi Srinivasan
PURPOSE: Diagnostic testing for dry eye disease (DED) in Sjogren's syndrome (SS) is well described. Little is published about monitoring this systemic autoimmune DED. We analyzed the SS related DED tests used in North American optometric practices and compared academic settings to private practice settings. METHODS: A retrospective chart review of 123 SS charts from 6 optometric practices in North America was conducted. Testing done during the first examination following a SS diagnosis was recorded on Research Electronic Data Capture (REDCap) database...
July 14, 2018: Journal of Optometry
Sarah Aumond, Etty Bitton
The primary role of eyelashes is to protect and maintain the health of the lid margin. However, the mechanisms to fulfill this role are not fully understood. Unraveling these mechanisms will stand to greatly improve the efficiency of eye care professionals' interventions in anomalies of the eyelashes. The aim of this article is to provide a review on eyelashes including highlights and new avenues for research; the biology of both the lash and its follicle; the pathophysiology and management of lash anomalies by eye care professionals; and the effect of iatrogenic factors on lashes...
July 14, 2018: Journal of Optometry
Samuel Otabor Wajuihian
AIM: To determine normative values for stereoacuity, accommodative and vergence measures for high school populations. METHODS: Using a multi-stage random cluster sampling, 1211 children (481 males and 730 females) between 13 and 18 years of age, with a median age of 16 years, were selected. Visual acuity, stereoacuity and suppression, refractive errors, near point of convergence, heterophoria and fusional vergences, as well as, amplitude of accommodation, accommodative response, facility and relative accommodation were evaluated...
June 7, 2018: Journal of Optometry
Sharanjeet-Kaur, Siti-Aishah Ismail, Haliza Abdul Mutalib, Nor Fariza Ngah
PURPOSE: The purpose of this study was to determine the relationship between HbA1c values and retinal sensitivity at central 10° using the MP-1 microperimeter. METHODS: A prospective study was carried out on 32 healthy subjects (control group) and 60 diabetic patients. The diabetic patients were divided into 2 groups. Group 1 comprised of 30 patients without diabetic retinopathy (DR) and group 2 had 30 patients with mild non-proliferative DR. A full-threshold microperimetry of the central 10° of retina (the macula) was performed on all subjects, utilizing 32 points with the MP-1...
May 26, 2018: Journal of Optometry
Hassan Hashemi, Mehdi Khabazkhoob, Payam Nabovati, Fatemeh Azad Shahraki, Hadi Ostadimoghaddam, Mohammad Faghihi, Mohamadreza Aghamirsalim, Asgar Doostdar, Abbasali Yekta
PURPOSE: To determine the prevalence of accommodative insufficiency (AI) and its relation with age, gender, and refractive errors in a college-age student population in Iran. METHODS: The present study was conducted cross-sectionally in 2017. All students had optometric tests including measurement of visual acuity, objective and subjective refraction, as well as binocular vision and accommodative examinations. Amplitude of accommodation was measured with the Donders' push-up method using the Royal Air Force (RAF) rule...
May 22, 2018: Journal of Optometry
Giancarlo Montani, Paul J Murphy, Sudi Patel
PURPOSE: To investigate changes in higher order ocular aberrations (HOA) induced by the administration of 0.15% sodium hyaluronate tear enhancer (TE) and meibomian gland expression (ME) on the tear film of normal subjects. METHODS: HOA values were obtained from the corneal surface (CS) and whole eye (WE), using a corneal topographer and Shack-Hartmann aberrometer, from both eyes of 50 subjects (25 females, mean age±sd 32.5±11.0 years, and 25 males, 33.88±11.2 years) for two pupil sizes (3 and 6mm) in a dark environment...
April 23, 2018: Journal of Optometry
Catriona Barrett, James Loughman
PURPOSE: To investigate current diagnostic equipment availability and usage for glaucoma case-finding within community optometric practice, and to explore optometrists' attitudes towards an enhanced scope of clinical practice. METHODS: An anonymous survey was developed, validated, and distributed to all optometrists in Ireland. RESULTS: 199 optometrists (27% of registrants) responded to the survey. 87% had access to the traditional triad of tests necessary to conduct adequate glaucoma case finding...
April 9, 2018: Journal of Optometry
Alberto Domínguez-Vicent, Daniel Monsálvez-Romín, José J Esteve-Taboada, Robert Montés-Micó, Teresa Ferrer-Blasco
PURPOSE: To compare changes in the ciliary muscle area at different sectors between pre-presbyopic and presbyopic eyes during accommodation by means of an anterior segment optical coherence tomographer (OCT). METHODS: The anterior ciliary muscle area was measured in 20 healthy and phakic pre-presbyopic eyes, whose mean age was 23.3±4.4 years, and in 20 healthy and phakic presbyopic eyes, whose mean age was 46.5±5.2 years. The relative change in the cross-sectional area of the ciliary muscle was measured at the nasal, inferior, and temporal sectors between 0 and -3 D of vergence, in -1 D step...
April 4, 2018: Journal of Optometry
Paula Bernal-Molina, José J Esteve-Taboada, Teresa Ferrer-Blasco, Robert Montés-Micó
PURPOSE: To assess the changes in the accommodative response of the eye while reading a text under different contrast polarity conditions: black letters on white background (BoW condition) and white letters on black background (WoB condition). METHODS: Eighteen subjects with ages ranging from 21 to 41 years participated in this experimental study. The accommodative response (AR) of the eye while reading a text with BoW or WoB contrast polarity was obtained objectively with an adaptive optics system that corrected all aberrations but subject's own...
April 4, 2018: Journal of Optometry
Manuel Rodríguez-Vallejo, David P Piñero, Joaquín Fernández
No abstract text is available yet for this article.
April 4, 2018: Journal of Optometry
Michael J Doughty
PURPOSE: To evaluate whether visual target character and visibility affects spontaneous eye blink rate (SEBR) in primary eye gaze and silence. METHODS: Video recordings were made of young healthy adults who were either emmetropic (n=32) or who wore spectacles for refractive error (range -4.75D and +4.50D (n=31). Emmetropes had 5min recordings made whilst seated and looking towards a distant whiteboard. For spectacle wearers, recordings were made whilst looking towards the whiteboard with a 35mm sized cross, and repeated after spectacle removal...
April 4, 2018: Journal of Optometry
Hassan Hashemi, Amir Asharlous, Abbasali Yekta, Hadi Ostadimoghaddam, Masumeh Mohebi, Mohamadreza Aghamirsalim, Mehdi Khabazkhoob
PURPOSE: To evaluate the relationship patterns between astigmatism axes of fellow eyes (rule similarity and symmetry) and to determine the prevalence of each pattern in the studied population. METHODS: This population-based study was conducted in 2015 in Iran. All participants had tests for visual acuity, objective refraction, subjective refraction (if cooperative), and assessment of eye health at the slit-lamp. Axis symmetry was based on two different patterns: direct (equal axes) and mirror (mirror image symmetry) or enantiomorphism...
April 3, 2018: Journal of Optometry
Iván Marín-Franch
No abstract text is available yet for this article.
April 2018: Journal of Optometry
Maddalena De Bernardo, Nicola Rosa
No abstract text is available yet for this article.
April 2018: Journal of Optometry
Fatih Özcura, Nilgün Yıldırım
No abstract text is available yet for this article.
April 2018: Journal of Optometry
Ane Murueta-Goyena, Pilar Cañadas
Corneal refractive surgery procedures are widely performed to permanently correct refractive errors. Overall, refractive surgeries are safe, predictable and present high rates of satisfaction. Nevertheless, the induced epithelial, stromal and nerve damage alters corneal integrity and function, triggering a regenerative response. Complications that arise from corneal wound healing process might directly impact on visual outcomes of keratorefractive procedures. Most of these complications can be prevented or effectively treated with minimal consequences and minor impact on optical quality...
April 2018: Journal of Optometry
Patricia Loma, Ana Guzman-Aranguez, Maria J Perez de Lara, Jesus Pintor
PURPOSE/AIM: Glaucoma consists of a group of progressive optic neuropathies that are characterized by degeneration of the optic nerve and irreversible visual filed loss. Elevated intraocular pressure is the only proven treatable risk factor and commercial products used for glaucoma treatment are focused in lowering intraocular pressure. These drugs can have various undesirable side effects and this invites to look for new strategies. The purpose of this work is to study the use of a siRNA (small interfering RNA) to selectively silence beta2 adrenergic receptors and to see whether it reduces IOP (intraocular pressure)...
April 2018: Journal of Optometry
Sepehr Feizi, Siamak Delfazayebaher, Vahid Ownagh, Fatemeh Sadeghpour
PURPOSE: To evaluate the agreement between total corneal astigmatism calculated by vector summation of anterior and posterior corneal astigmatism (TCAVec ) and total corneal astigmatism measured by ray tracing (TCARay ). METHODS: This study enrolled a total of 204 right eyes of 204 normal subjects. The eyes were measured using a Galilei double Scheimpflug analyzer. The measured parameters included simulated keratometric astigmatism using the keratometric index, anterior corneal astigmatism using the corneal refractive index, posterior corneal astigmatism, and TCARay ...
April 2018: Journal of Optometry
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